|
| << vorige | volgende >> |
Tijdschrift beschrijving
Alle jaargangen van het bijbehorende tijdschrift
Alle afleveringen van het bijbehorende jaargang
Alle artikelen van de bijbehorende aflevering
Details van artikel 11 van 13 gevonden artikelen
| Titel: |
THE EFFECT OF RHEOLOGICAL COMPLEXITIES ON POWER CONSUMPTION IN AN AERATED, AGITATED VESSEL |
| Auteur: |
Nienow, A.W. Wisdom, D.J. Solomon, J. Machon, V. Vlcek, J. |
| Verschenen in: |
Chemical engineering communications |
| Paginering: | Jaargang 19 (1983) nr. 4-6 pagina's 273-293 |
| Jaar: |
1983-01-01 |
| Inhoud: |
Power for agitation has been measured under aerated and unaerated conditions in a 0.29 m vessel of Rushton dimensions at specific powers up to 18 W/kg. The fluids studied were water. Newtonian solutions up to 19 m Pas and non-Newtonian shear thinning fluids some of which also exhibited a yield stress and some of which were viscoelastic. For the unaerated case, the power number-Reynolds number plot is in good agreement with the literature. For the aerated case, the result can conveniently be divided into three Reynolds number regions. At Re > ∼900, the data obtained for the solutions is not markedly different to that for water except that a higher impeller speed is required to achieve complete gas dispersion. For ∼ 10 < Re < ∼900. the power drawn is independent of gassing rate and greater levels of elasticity and the presence of a yield stress leads to the lowest power numbers. For Re < ∼10, the gassed and ungassed power numbers are equal. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 11 van 13 gevonden artikelen
| << vorige | volgende >> |